Science & Mathematics - 27 January 2007

like Earth?

2007-01-27 05:42:25 · 11 answers · asked by Anonymous in Astronomy & Space

This year when I take the California Standardized State testing, how can I review all of the important things that will be on the test to score advanced?

2007-01-27 05:41:59 · 2 answers · asked by Anonymous in Mathematics

I have a lab to do. In order to complete the lab I need to know this. In my expt. I had to melt wax and then let it form a ball on 3 different wires of 3 different thicknesses to find out which conducts heat faster. Let the wax dry, then, put 1 end of the wire over a fire. During this, I observed all the wires. They all charred after a layer of some copper type coating came off. I was able to wipe it off with my fingures, but i don`t know why that happened.

2007-01-27 05:36:56 · 4 answers · asked by stusa 1 in Chemistry

2007-01-27 05:35:55 · 5 answers · asked by muhammad umar 1 in Astronomy & Space

2007-01-27 05:35:20 · 13 answers · asked by Mz. LoLO 1 in Astronomy & Space

compound formed from Pb^4+ and C2H3O^2- is?
i know the anwser is Pb(C2H3O2)2 ... can some one explain step by step what to do to get from Pb^4+ and C2H3O^2- to Pb(C2H3O2)2
..... it would be alot of help exam very soon

2007-01-27 05:35:06 · 6 answers · asked by Anonymous in Chemistry

-Write an algebraic expression and solve the equation for: Eight less than four times a number is the same as eight times the sum of the number and two. What is the number?

-If 18 is decreased by the sum of a number and 6, the result is 4 less than 3 times the number. Find the number.

-A triangle has a perimeter of 29 cm. The sides have lengths, in centimeters, that are consecutive odd integers. What is the length of the longest side?

-1/3 ( x - 2 ) = x + 4

-15 - 1/8 d = -1

2007-01-27 05:34:32 · 4 answers · asked by sillentfeline 1 in Mathematics

2007-01-27 05:30:06 · 8 answers · asked by Mention the flag of St David 3 in Medicine

Use De Morgan’s laws to write an equivalent statement for the following sentence:
If we go to San Antonio, then we will go to Sea World or we will not go to Busch Gardens

Ive got this so far to illustrate the given statement
P --> (Q V ~R)

Now I need to find something equivalent to that and put it into english. Any Help?

2007-01-27 05:24:55 · 3 answers · asked by Anonymous in Mathematics

It has to deal with evolution or biodiversity. Any ideas?

2007-01-27 05:24:03 · 2 answers · asked by Anonymous in Biology

please answer it

2007-01-27 05:22:45 · 9 answers · asked by Anonymous in Chemistry

my doctor wants me to take Fosamax for treatment of osteoporosis but I am not sure this drug is safe enough..anyone have any thing to say good or bad about this drug?

2007-01-27 05:22:22 · 3 answers · asked by jeanne m 1 in Medicine

2007-01-27 05:22:07 · 2 answers · asked by sexy ne 1 in Earth Sciences & Geology

2007-01-27 05:21:48 · 2 answers · asked by Anonymous in Other - Science

geometry

2007-01-27 05:20:28 · 9 answers · asked by baby ghettop 1 in Mathematics

Which Quardrant is it?

I
II
III
IV
I & II
III & IV

2007-01-27 05:18:40 · 6 answers · asked by Anonymous in Mathematics

2007-01-27 05:17:26 · 8 answers · asked by shskw04 1 in Engineering

To start a new plant, pollen from one flower has to enter an ovule in another flower. So pollen from the stamens of one flower has to travel through the air to the stigma of another flower. Sometimes wind blows the pollen from one flower to another. Sometimes bees or other insects carry the pollen on their bodies. This is why flowers have bright colours and a nice smell– to attract insects. When a pollen grain lands on the stigma, it goes down a tube called the style and lands in the ovule. The pollen cell combines with the ovule which grows into a new seed. After this the stamens and petals dry up and fall off because they are no longer needed.

i am especially stuck on the terms ovary and ovule. have i used them correctly?

2007-01-27 05:15:53 · 3 answers · asked by speedwaychick 1 in Botany

2007-01-27 05:13:19 · 5 answers · asked by justin p 1 in Zoology

it is mentioned that because of the space time curavture, we experienced things like gravity, hence planets revolve around sun and the solar system revolve round the Milky Way... But why wont we fall in towards the Sun? I mean how is it that Earth's orbit is stable and not spiral in.

2007-01-27 05:13:11 · 7 answers · asked by sh 1 in Astronomy & Space

geometry

2007-01-27 05:13:07 · 6 answers · asked by baby ghettop 1 in Mathematics

2007-01-27 05:09:55 · 3 answers · asked by kathrine 1 in Chemistry

2007-01-27 05:09:49 · 6 answers · asked by shakira_rocks 3 in Mathematics

2007-01-27 05:08:29 · 20 answers · asked by Anonymous in Astronomy & Space

2007-01-27 05:07:05 · 5 answers · asked by michellearde 1 in Medicine

A town has a population of 18,500. 17% are under 21 years of age. 24% are 21 or over but less than 35. 33% are 35 or over but less than 60. 20% are over 60 but less than 75. The rest are 75 or over. How many people are 75 or older?

2007-01-27 05:07:02 · 6 answers · asked by Olivia 4 in Mathematics

common household items

2007-01-27 05:06:56 · 9 answers · asked by Anonymous in Engineering

Why, when you turn off a lightbulb, does the light currently in the room go away? The photons are still there, bouncing around, but they don't act the same as when the light is on. Shouldn't you see the photons still moving around reflecting off of surfaces and reaching your eyes? Yes, they can leak out in various places in the room, but say you have a perfectly sealed box of mirrors with a lightbulb inside. When you turn that light off, where do the photons go? They don't go throught the mirrors; then the box would glow, they don't dissapear; impossible, and they don't stick around; the inside of the box would be perpetually light. I want real, supportive answers based on scientific fact.

2007-01-27 05:05:45 · 6 answers · asked by John Doe IV 3 in Other - Science

Geometry

2007-01-27 05:04:22 · 4 answers · asked by baby ghettop 1 in Mathematics

A town has a population of 18,500. 17% are under 21 years of age. 24% are 21 or over but less than 35. 33% are 35 or over but less than 60. 20% are over 60 but less than 75. The rest are 75 or over. If you have to be 21 or over to be on a jury, what percentage of the population can serve on a jury?

2007-01-27 05:03:39 · 14 answers · asked by Olivia 4 in Mathematics